major river bed 中文意思是什麼
major river bed
解釋
大河床-
In the past decade, we built a total of some 31 kilometres of concrete channel bed in 16 major river training and flood prevention projects ( see annex 1 for details )
在過去十年,我們在16項主要河道治理及防洪工程中建造共約31公里混凝土河床,詳見于附表一。
分享友人